Hi @qvs,
Sorry to hear this.
Regarding connectivity errors, which errors are you encountering specifically (if they are detailed on-screen)?
I recommend trying our connectivity solutions which may help. In particular, trying Flush Your DNS and Change Your DNS (to Google) may improve things. Please see:
It’s strange to hear your icue is crashing when changing DPI mid-game, and that input lag is occurring. Have you tried repairing or redownloading your icue and peripheral software?